Motion Monitor (CB8275E)

Suggested by General Electric in a 1970 document, this circuit uses a LASCR, or SCR fired by light. This component is uncommon today.

| Clique na imagem para ampliar |

Darlington Amplifier Stage (CB974E)
I found this circuit in a doc umentation from the year 1968. It uses germanium transistor and has...
Audible Voltmeter (CB13792E)
This circuit produces sounds that depend on the measured voltage and that can be compared with a...
Piezoelectric Buffer (CB21152E)
This circuit was found in American documentation from the 90s. It serves as an amplifier for a...